Title: Preparation of 1,2-propanediol
Application Number: 95121742 Application Date: 1995.11.26
Publication Number: 1131655 Publication Date: 1996.09.25
Approval Pub. Date: 2001.02.14 Granted Pub. Date: 2001.02.14
International Classifi-cation: B01J23/16;B01J23/28;B01J23/34;B01J23/70;B01J23/72;B01J23/75;C07C29/132;C07C31/20
Applicant(s) Name: BASF AG Address:
Inventor(s) Name: Ludwig Schuster;Manfred Eggersdorfer
Attorney & Agent: YANG JIUCHANG
Abstract:
    A process for the preparation of 1,2-propanediol by catalytic hydrogenation of glycerol at elevated temperature and elevated pressure, which comprises using glycerol having a water content of up to 20% by weight and a catalyst comprising the metals cobalt, copper, manganese and molybdenum in amounts of, based on the total weight of the catalyst, from 40 to 70% by weight of cobalt, from 10 to 20% by weight of copper, from 0 to 10% by weight of manganese and from 0 to 10% by weight of molybdenum, where this catalytically active material may additionally contain inorganic polyacids and/or heteropolyacids in an amount of up to 10% by weight, based on the total weight of the catalyst.
Time: 9
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